Apparatus for producing sulfur dioxid



H. K. LYON. APPARATUS FOR PRODUCING SULFUR DIOXID. APPLicATloN FILED JULY 17. 1919.

Patented Apr. 20, 1920.

2 SHEETS-SHEET l.

H. K. LYON. APPARATUS FoR PRoDUclNG SULFUR moxln.

APPLICATION FILED JULY 1.7, i919. 1.337,561 Patented Apr. 20, 1920.

. I 2 SHEETS-SHEET 2.

ffff gm HORACE K. LYON, OF TULSA, OKLAHOMA.

APPARATUS FOR PRODUCING SULFUR DIOXID.

Specification of Letters Patent.

Application led July 17, 1919.l Serial No. 311,429.

To aZZ whom t may concern:

Be it known that I, HORACE K. LYON, a citizen of the United States, residing at rI`ulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Apparatus for Producing Sulfur Dioxid, of which the followin is a specification.

is invention relates to apparatus for producing sulfur dioxid. l

The idea involved is to burn crude sulfur ore and convert the sulfur v'into sulfurdioxid which is conveyed to a suitable collecting tank, sulfuric acid being made from the sulfur dioxid, in the well known manner.

In carrying out the invention theore is preferably, but not necessarily, crushed and introduced into a furnace. he furnace is heated byv artificial means until the sulfur begins to burn, after which the artificial heat is materially reduced, thus effecting a saving in fuel.

Air is supplied to the burning sulfur insuicient quantity to produce sulfur dioxid;

The fumes or sulfuredioxid are passed through a heating chamber at a very high temperature. Provision is made for intro-v ducing additional air or oxygen into the heating chamber so that any sulfur which may have volatilized may be converted into sulfur-dioxid.- Any sulfur which volatizes or condenses and is permitted to escape in such a state would` be lost. l

The invention will be more readily understood from reading of the following specification and by reference to the accompanying drawings,in which an example of the invention is shown and wherein:

Figure 1 is a longitudinal sectional view of a furnace for carrying out the method,

Fig. 2 is a transverse vertical sectional view of the saine,

Fig. 3 is an endelevation, and

Fig. 4 is an elevation of the opposite end.

In the drawings the numeral ll designates a suitable furnace structure -having end, plates 2 and 3 respectively, and a top plate 4. A fire 4box or combustion chamber 40 is disposed longitudinally of lthe furnace, a

may-,be withdrawn through7 the plate 3 vto dumpthe ashinto a hopper 12 from which it may be suitably removed. l

A hopper 13 on the top 4 is surrounded by a heating jacket 14 having vents l5 at its '.top. A vertical chute 16 extends from the hopper down to the top 18 of the fire box.

" A pair ofnormally 'closed doors 17 at the bottom of the hopper permit ore to be dropped therebetween, but prevent the escape of fumes from the fire box.

' Heating chambers 19 and20 respectively,

. are superposed above the box 40, said chambers being spaced apart and spaced from the walls of the furnace as well as being spaced from the' top 18 of the box. A'flue 21 connects'the lowerchamber 19 with the lire box adjacent the end plate 3; while at the oppo- 'site end of the chamber 19, a liue 22 con-v nects with'the chamber 20. The chute 16 extends throu hI the chambers. An outlet Patented Apr. 2o, 1920.

flue 23 leads rom the opposite end of the chamber 20.`

Burners 24 are located under the` bottom of the fire box on each side of the ash hopper, and can be'supplied with oil, gas or any other fuel. The heat generated by the burners acts directly on the fire box and passes around the same and then passes upward and between the heating chambers, to the' jacket 14 and out through the open'- ings 15. vBy this means the fire boxy chambers 19 and 20 and hopper 13 are heated to a necessary degree in each instance.

Ore containing sulfur is fed into the hopper 13 and is there heated and dried. The

. ore is dropped into the chute 16 and reaches the ire box "40 in a warm state. The agitator spreads the ore and the round bottom assists in an even distribution of the same.

The temperature in the fire box is highenough to cause the sulfur t6 ignite and burn. The draft opening is opened by raising the damper 6 Vand suficient air is admitted to enable the sulfur to be converted into sulfur-dioxid. This product will opposite end.v

his

pass up through the flue 21 into the lower heating chamber, throughout the length .of

end plate 3 andfextends into the chamber 19.

This duct hasv its discharge end curved down- `ward' over the flue 21. controls the admission of air to the duct.l

A rotary damper This duct admits oxygen in suficient quantity to defeat volatilizing atthis point. The

i Vhigh temperature4 of the sulfur dioxid is maintained throughout its. journey through the furnace. l Y Very satisfactory results have been had from ore containing sulfur and gypsum, the

formerburning and the latter not burning. What I claim, is: 4

.1. In a furnace for'producing sulfur dioxiddirect' froln'or, a ire box, means for artificially heatingthe firev box to igniteA the ore, the fire box having an air inlet, means above the fire -box for preheating the ore and supplying the -same to the box, and a heating chamber also above the fire box communicating "therewith, said heating chamber beingseparatev from they preheating means. r

' 2. In a furnace` forproducing sulfur dioxid direct from ore', a fire box, means for artificially heating the fire box to ignite the ore, the fire ,box having an airinlet, means' above the yfirebox for preheating the ore and supplying the same to the box, a heating chamber also above the fire box andv communicating therewith, said heating chamber being separatefrom the preheating means, and-means for admitting addi tional air to the heating chamber.

3. In apparatus'vfor producing sulfur di` 0x id, a irebox, means for supplying sulfurv containing material into l the fire box, agitatingmeans within the fire box, a heating chamber arranged near the fire-box and spaced therefrom land. havingmeansof cemmunication therewith-for the passage of the sulfur dioxid,'means for introducing a suitable amount of air into the fire box, a fur-4 .nace structure embodying a jacket surrounding the fire box and heating chamber in spaced relation and being free from communication withv the interior thereof, and burners arranged within the lower portion of the furnace structure exteriorly of and near the irebox.

4. In apparatus for producing sulfur dioxid, a fire box, meansV for supplying sulfur containing material into -the fire box,

agitating means within the fire box, a plurality of-spaced superposed heating chambers arranged above the fire box, the lower chamber being spaced from the'fire box and provided near one end thereof with means of communication with the fire box, means of communication between theends of the heating chambers which are remote from the first named means of communication, outlet means connected with the opposite end of the upper chamber, means for admitting a suitable amount of air into the fire box, a furnace structure embodying a jacket surrounding the fire box` and heating chamb'er in spaced relation and being free from communication with the interior thereof, and heating means arranged within the lower portion of the furnace structure exteriorly of and near the fire box.

5. In apparatus for producing sulfur dioxid, a fire box, means for 'supplying sulfur containing material into the fire box, agitating means within the fire box, a plurality of spaced superposed heating chambers arber being spaced from the fire box and provided near one end thereof with means of ranged above the fire box,'the lower chamcommunication with the fire box, means of communication between the ends of the 4heating, chambers which are remote fromend of the upper chamber, means for admitting air to one endof the-fire box which is remote from the means of communication between the fire box and the lower chamber, an air supplying device arranged near the means -of communication between the fire boxand lower chamber, a furnace structure embodying a jacket surrounding the fire box and heating chambers Yin spaced relation and being free from communication with the interior thereof, and heating means arranged within the furnace-structure near the fire box.

6. In apparatus for producing sulfur dioxid, a fire box having a bottom curved in vertical cross section, a rotatable agitator extending -longitudinally within the fire box, a plurality of spaced superposed heating chambers arranged above the fire box, the

lowzer chamber being spaced from the fire box 1 2 5 and provided near one end thereof with means of communication with the re box, means of communication between the ends of the heating chambers which are remote from the first named means of communication.

gas outlet means connected With the oppo-A site end of the upper chamber, means for supplying air to the fire box, a hopper arranged above-said chambers and having a depending chute extending through said chambers and leading into the fire box, a furnace structure embodying 'a jacket sur rounding the re box and heating chambers in spaced relation, a jacket surrounding the hopper and having communication 10 With the irst named jacket, and a burner arranged lWithin the lower portion of the furnace structure nearthe fire box.

In testimony vwhereof I affix my signature.

HORACE K. LYON. 

